On 05/10/2009, at 5:01 AM, Rob Danielson wrote:
>
> Given the amount of steady sustain and the "grainy" character of the
> "hissy" noise, I do suspect its not just from environmental
> vegetation/wind interaction. You can see from the EQ curve, much of
> the noise is between 4K Hz and 6K Hz with a large concentration
> around 4300 Hz. The amount of noise is different from channel to
> channel and pretty fixed in ratio which also suggests its not
> environmental. I cannot account for what others may hear above 10Hz
> with my ears. I bet others can hear plenty up there. This noise is
> not typical for AT-3032 recordings I've EQ'd before.
>
Hi Rob,
I haven't had a chance to look at the comparison but I agree the noise
isn't normal AT3032 even from my rig.
A week earlier I was recording well before dawn at Gunabooka and there
are a few stretches of silence. I've edited out a couple of seconds.
The original file is at 88.2khz/24bit.
http://www.urbanbirder.com.au/audio/download/242/GundabookaSilence.wav
cheers
Paul
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